Is a criminal defendant denied his right to a jury trial under the Sixth Amendment and due process under the Fourteenth Amendment when the trial court denies a requested jury instruction on a valid defense theory and the admitted, relevant, and exculpatory evidence supporting that defense is presented at trial?

QUESTION PRESENTED Is a criminal defendant denied his right to a jury trial under the Sixth Amendment and due process under the Fourteenth Amendment when the trial court denies a requested jury instruction on a valid defense theory and the admitted, relevant, and exculpatory evidence supporting that defense is presented at trial? 1